Abstract: A hair restoring apparatus comprises a helmetlike cap having a sealing ring formed around a brim portion into which compressed air is supplied, and provided with an air inlet/outlet, steam inlets and hair restorer inlets. A pneumatic machine is connected to the air inlet/outlet of the cap and to the sealing ring formed around the brim portion of the cap by way of pipes, a steam generator is connected to the steam inlets of the cap by way of pipes, and a hair restorer supply unit for storing a hair restorer is connected to the hair restorer inlets of the cap by way of pipes. The cap is put on the head to form a sealed space between the cap and the head, steam is jetted into the sealed space after evacuating the latter to expand and to clean portions of the scalp around hair roots, a hair restorer is jetted into the evacuated, sealed space, and then compressed air is jetted into the sealed space to promote the penetration of the hair restorer into the portions of the scalp around hair roots.